DE3704685C2 - - Google Patents
Info
- Publication number
- DE3704685C2 DE3704685C2 DE3704685A DE3704685A DE3704685C2 DE 3704685 C2 DE3704685 C2 DE 3704685C2 DE 3704685 A DE3704685 A DE 3704685A DE 3704685 A DE3704685 A DE 3704685A DE 3704685 C2 DE3704685 C2 DE 3704685C2
- Authority
- DE
- Germany
- Prior art keywords
- radiation
- function
- image
- distribution
- equation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000005855 radiation Effects 0.000 claims description 91
- 238000003384 imaging method Methods 0.000 claims description 11
- 238000004364 calculation method Methods 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 9
- 230000008859 change Effects 0.000 claims description 2
- 230000009467 reduction Effects 0.000 claims description 2
- 230000009466 transformation Effects 0.000 claims description 2
- 230000015654 memory Effects 0.000 description 32
- 238000000034 method Methods 0.000 description 20
- 230000006870 function Effects 0.000 description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 239000003638 chemical reducing agent Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 238000005315 distribution function Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 238000000333 X-ray scattering Methods 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000013256 coordination polymer Substances 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/52—Devices using data or image processing specially adapted for radiation diagnosis
- A61B6/5258—Devices using data or image processing specially adapted for radiation diagnosis involving detection or reduction of artifacts or noise
- A61B6/5282—Devices using data or image processing specially adapted for radiation diagnosis involving detection or reduction of artifacts or noise due to scatter
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/30—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from X-rays
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/58—Testing, adjusting or calibrating thereof
- A61B6/582—Calibration
- A61B6/583—Calibration using calibration phantoms
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/30—Transforming light or analogous information into electric information
- H04N5/32—Transforming X-rays
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Pathology (AREA)
- Molecular Biology (AREA)
- Public Health (AREA)
- Optics & Photonics (AREA)
- High Energy & Nuclear Physics (AREA)
- Radiology & Medical Imaging (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Biophysics (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Veterinary Medicine (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Image Processing (AREA)
- Image Analysis (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61033553A JPS62191972A (ja) | 1986-02-18 | 1986-02-18 | Ｘ線画像処理装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3704685A1 DE3704685A1 (de) | 1987-10-08 |
| DE3704685C2 true DE3704685C2 (sv) | 1992-12-17 |
Family
ID=12389744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19873704685 Granted DE3704685A1 (de) | 1986-02-18 | 1987-02-14 | Anordnung und verfahren zur korrektur bzw. kompensation von streustrahlung durch adaptive filterung |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US4918713A (sv) |
| JP (1) | JPS62191972A (sv) |
| DE (1) | DE3704685A1 (sv) |
Families Citing this family (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2627098B2 (ja) * | 1990-04-27 | 1997-07-02 | 富士写真フイルム株式会社 | 骨塩定量分析方法および装置 |
| DE69308350T2 (de) * | 1992-04-08 | 1997-08-21 | Philips Electronics Nv | Vorrichtung zur Röntgenuntersuchung mit Korrektur der Streustrahlungseffekte in einem Röntgenbild |
| US5440647A (en) * | 1993-04-22 | 1995-08-08 | Duke University | X-ray procedure for removing scattered radiation and enhancing signal-to-noise ratio (SNR) |
| US5561297A (en) * | 1993-07-12 | 1996-10-01 | Sopha Medical Systems, Inc. | Scatter correcting gamma-ray camera |
| JP3408848B2 (ja) * | 1993-11-02 | 2003-05-19 | 株式会社日立メディコ | 散乱ｘ線補正法及びｘ線ｃｔ装置並びに多チャンネルｘ線検出器 |
| EP0660599B2 (en) * | 1993-12-24 | 2002-08-14 | Agfa-Gevaert | Partially-transparent-shield-method for scattered radiation compensation in x-ray imaging |
| US5481584A (en) * | 1994-11-23 | 1996-01-02 | Tang; Jihong | Device for material separation using nondestructive inspection imaging |
| US5661818A (en) * | 1995-01-27 | 1997-08-26 | Eastman Kodak Company | Method and system for detecting grids in a digital image |
| JP3423828B2 (ja) * | 1995-11-30 | 2003-07-07 | 株式会社日立メディコ | Ｘ線画像作成方法およびその装置 |
| US5878108A (en) * | 1995-11-30 | 1999-03-02 | Hitachi Medical Corporation | Method for generating X-ray image and apparatus therefor |
| JP3459745B2 (ja) * | 1997-03-27 | 2003-10-27 | キヤノン株式会社 | 画像処理装置、放射線撮影装置及び画像処理方法 |
| US5954310A (en) * | 1997-10-03 | 1999-09-21 | Autonomous Effects, Inc. | Apparatus and method for positioning a payload about multiple axes |
| US6879715B2 (en) * | 2001-12-05 | 2005-04-12 | General Electric Company | Iterative X-ray scatter correction method and apparatus |
| US6633626B2 (en) | 2002-02-01 | 2003-10-14 | General Electric Company | Methods and apparatus for correcting scatter |
| US6748047B2 (en) * | 2002-05-15 | 2004-06-08 | General Electric Company | Scatter correction method for non-stationary X-ray acquisitions |
| US20040120457A1 (en) * | 2002-12-20 | 2004-06-24 | University Of Massachusetts Medical Center | Scatter reducing device for imaging |
| JP4334244B2 (ja) * | 2003-02-13 | 2009-09-30 | 株式会社東芝 | バイプレーンｘ線撮影装置 |
| US7352887B2 (en) * | 2003-04-11 | 2008-04-01 | Hologic, Inc. | Scatter rejection for composite medical imaging systems |
| JP3950855B2 (ja) * | 2004-01-07 | 2007-08-01 | ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー | 散乱測定方法、散乱補正方法およびｘ線ｃｔ装置 |
| DE102004029009A1 (de) * | 2004-06-16 | 2006-01-19 | Siemens Ag | Vorrichtung und Verfahren für die Streustrahlungskorrektur in der Computer-Tomographie |
| US7463712B2 (en) * | 2006-05-18 | 2008-12-09 | The Board Of Trustees Of The Leland Stanford Junior University | Scatter correction for x-ray imaging using modulation of primary x-ray spatial spectrum |
| DE102006045722B4 (de) * | 2006-09-27 | 2014-11-27 | Siemens Aktiengesellschaft | Verfahren zur Korrektur der Streustrahlung in der Projektionsradiographie und der Comupter-Tomographie und Apparat hierfür |
| FR2966716B1 (fr) | 2010-10-29 | 2012-12-21 | Gen Electric | Methode d'estimation et de correction de la diffusion en mammographie. |
| US8433154B2 (en) | 2010-12-13 | 2013-04-30 | Carestream Health, Inc. | Enhanced contrast for scatter compensation in X-ray imaging |
| JP6392058B2 (ja) * | 2014-09-30 | 2018-09-19 | 富士フイルム株式会社 | 放射線画像処理装置および方法並びにプログラム |
| US9375192B2 (en) | 2014-10-14 | 2016-06-28 | Carestream Health, Inc. | Reconstruction of a cone beam scanned object |
| JP6392391B2 (ja) * | 2017-03-08 | 2018-09-19 | 富士フイルム株式会社 | 放射線画像処理装置および方法並びにプログラム |
Family Cites Families (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2336026A (en) * | 1938-02-08 | 1943-12-07 | Richardson Co | X-ray grid and the like |
| US2679008A (en) * | 1950-06-23 | 1954-05-18 | Emery D Hall | X-ray grid |
| US3860821A (en) * | 1970-10-02 | 1975-01-14 | Raytheon Co | Imaging system |
| DE2452166A1 (de) * | 1974-11-02 | 1976-05-13 | Philips Patentverwaltung | Anordnung zum verringern des streustrahleneinflusses |
| DE2459890B2 (de) * | 1974-11-09 | 1978-04-27 | Medicor Muevek, Budapest | Schaltungsanordnung zur Erleichterung der Auswertung von Aufnahmen, insbesondere Röntgenaufnahmen |
| DE2454537A1 (de) * | 1974-11-16 | 1976-05-20 | Philips Patentverwaltung | Verfahren zur reduzierung des einflusses von streustrahlung und anordnung zur durchfuehrung des verfahrens |
| NL183160C (nl) * | 1974-11-26 | 1988-08-01 | Optische Ind De Oude Delft Nv | Stelsel voor het vormen van een videorepresentatie van een roentgenschaduwbeeld. |
| GB1571800A (en) * | 1976-01-15 | 1980-07-16 | Emi Ltd | Radiography |
| GB1569413A (en) * | 1976-02-05 | 1980-06-18 | Emi Ltd | Radography |
| FR2405696A1 (fr) * | 1977-10-11 | 1979-05-11 | Radiologie Cie Gle | Procede et appareil de tomographie axiale transverse |
| DE2821083A1 (de) * | 1978-05-13 | 1979-11-22 | Philips Patentverwaltung | Anordnung zur ermittlung der raeumlichen absorptionsverteilung in einem ebenen untersuchungsbereich |
| DE2939146A1 (de) * | 1979-09-27 | 1981-04-16 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Verfahren zur untersuchung eines koerpers mit durchdringender strahlung |
| EP0037722A1 (en) * | 1980-04-08 | 1981-10-14 | Technicare Corporation | Dynamic image enhancement method and apparatus therefor |
| DE3023401A1 (de) * | 1980-06-23 | 1982-01-07 | Siemens AG, 1000 Berlin und 8000 München | Roentgendiagnostikanlage mit einer aufnahmeeinheit mit einer roentgenroehre, die ein faecherfoermiges strahlenbuendel aussendet |
| US4399547A (en) * | 1981-11-02 | 1983-08-16 | General Electric Co. | Receiver of pulsed phase modulated signals |
| FR2526575A1 (fr) * | 1982-05-04 | 1983-11-10 | Thomson Csf | Procede de traitement d'image radiologique en vue de corriger ladite image des defauts dus au rayonnement diffuse |
| US4549307A (en) * | 1982-09-07 | 1985-10-22 | The Board Of Trustees Of The Leland Stanford, Junior University | X-Ray imaging system having radiation scatter compensation and method |
| EP0105618B1 (en) * | 1982-09-07 | 1989-10-25 | The Board Of Trustees Of The Leland Stanford Junior University | X-ray imaging system having radiation scatter compensation and method |
| DE3304213A1 (de) * | 1983-02-08 | 1984-08-09 | Siemens AG, 1000 Berlin und 8000 München | Roentgendiagnostikanlage mit mitteln zur unterdrueckung der streustrahlung |
| JPS59151939A (ja) * | 1983-02-08 | 1984-08-30 | 株式会社東芝 | Ｘ線診断装置 |
| JPS59151940A (ja) * | 1983-02-18 | 1984-08-30 | 株式会社東芝 | Ｘ線診断装置 |
| DE3469666D1 (en) * | 1983-04-25 | 1988-04-07 | Toshiba Kk | X-ray diagnostic apparatus |
| US4497062A (en) * | 1983-06-06 | 1985-01-29 | Wisconsin Alumni Research Foundation | Digitally controlled X-ray beam attenuation method and apparatus |
| US4571635A (en) * | 1984-02-17 | 1986-02-18 | Minnesota Mining And Manufacturing Company | Method of image enhancement by raster scanning |
| JPS60210087A (ja) * | 1984-04-03 | 1985-10-22 | Toshiba Corp | Ｘ線診断装置 |
| JPS61249452A (ja) * | 1985-04-30 | 1986-11-06 | 株式会社東芝 | Ｘ線診断装置 |
-
1986
- 1986-02-18 JP JP61033553A patent/JPS62191972A/ja active Pending
-
1987
- 1987-02-14 DE DE19873704685 patent/DE3704685A1/de active Granted
- 1987-02-18 US US07/016,129 patent/US4918713A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE3704685A1 (de) | 1987-10-08 |
| JPS62191972A (ja) | 1987-08-22 |
| US4918713A (en) | 1990-04-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |